Python - Find All Numbers Disappeared in an Array - 232 ms

[pomelonacho]

It's my solution to the problem Find All Numbers Disappeared in an Array in Python.

class Solution(object):
    def findDisappearedNumbers(self, nums):
        """
        :type nums: List[int]
        :rtype: List[int]
        """
        maximum = len(nums) + 1
        refactored = set(nums) 
        if (len(nums) != 0):
            aux = range(1,maximum)
            return list(set(aux) - refactored)
        return []

Time to execute, 232 ms. I hope that it can help to someone!